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. 2021 May 7;126(18):181802.
doi: 10.1103/PhysRevLett.126.181802.

New Limit for Neutrinoless Double-Beta Decay of ^{100}Mo from the CUPID-Mo Experiment

E Armengaud  1 , C Augier  2 , A S Barabash  3 , F Bellini  4   5 , G Benato  6 , A Benoît  7 , M Beretta  8 , L Bergé  9 , J Billard  2 , Yu A Borovlev  10 , Ch Bourgeois  9 , V B Brudanin  11 , P Camus  7 , L Cardani  5 , N Casali  5 , A Cazes  2 , M Chapellier  9 , F Charlieux  2 , D Chiesa  12   13 , M de Combarieu  14 , I Dafinei  5 , F A Danevich  15 , M De Jesus  2 , T Dixon  8 , L Dumoulin  9 , K Eitel  16 , F Ferri  1 , B K Fujikawa  17 , J Gascon  2 , L Gironi  12   13 , A Giuliani  9 , V D Grigorieva  10 , M Gros  1 , E Guerard  9 , D L Helis  1 , H Z Huang  18 , R Huang  8 , J Johnston  19 , A Juillard  2 , H Khalife  9 , M Kleifges  20 , V V Kobychev  15 , Yu G Kolomensky  8   17 , S I Konovalov  3 , A Leder  19 , P Loaiza  9 , L Ma  18 , E P Makarov  10 , P de Marcillac  9 , R Mariam  9 , L Marini  6   8   17 , S Marnieros  9 , D Misiak  2 , X-F Navick  1 , C Nones  1 , E B Norman  8 , V Novati  9 , E Olivieri  9 , J L Ouellet  19 , L Pagnanini  6   21 , P Pari  14 , L Pattavina  6   22 , B Paul  1 , M Pavan  12   13 , H Peng  23 , G Pessina  13 , S Pirro  6 , D V Poda  9 , O G Polischuk  15 , S Pozzi  13 , E Previtali  12   13 , Th Redon  9 , A Rojas  24 , S Rozov  11 , C Rusconi  25 , V Sanglard  2 , J A Scarpaci  9 , K Schäffner  6 , B Schmidt  17 , Y Shen  18 , V N Shlegel  10 , B Siebenborn  16 , V Singh  8 , C Tomei  5 , V I Tretyak  15 , V I Umatov  3 , L Vagneron  2 , M Velázquez  26 , B Welliver  17 , L Winslow  19 , M Xue  23 , E Yakushev  11 , M Zarytskyy  15 , A S Zolotarova  9 ; CUPID-Mo Collaboration
Affiliations
Free article

New Limit for Neutrinoless Double-Beta Decay of ^{100}Mo from the CUPID-Mo Experiment

E Armengaud et al. Phys Rev Lett. .
Free article

Abstract

The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale bolometric 0νββ experiment. It consists of a 4.2 kg array of 20 enriched Li_{2}^{100}MoO_{4} scintillating bolometers to search for the lepton-number-violating process of 0νββ decay in ^{100}Mo. With more than one year of operation (^{100}Mo exposure of 1.17 kg×yr for physics data), no event in the region of interest and, hence, no evidence for 0νββ is observed. We report a new limit on the half-life of 0νββ decay in ^{100}Mo of T_{1/2}>1.5×10^{24} yr at 90% C.I. The limit corresponds to an effective Majorana neutrino mass ⟨m_{ββ}⟩<(0.31-0.54) eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation.

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